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公开(公告)号：CA2554131C
公开(公告)日：2011-09-27
申请号：CA2554131
申请日：2005-01-14
Applicant: SMS DEMAG AG
Inventor： LIXFELD PETER , SKODA-DOPP ULRICH , WEHAGE HARALD , GRIMM WOLFGANG , BOROWIKOW ALEXANDER , BLEI HOLGER
Abstract: The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel or nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (Re) into account when calculating the set rolling force (FW) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (kf,R) and the set rolling force (FW) at small degrees of deformation (f) or small reductions, during which the high-temperature limit of elasticity (Re) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (kf) for determining the set rolling force (FW) via the relation (2) ) Re= a + e b1+ b2 .bullet. T. phipC , in which: Re represents the high-temperature limit of elasticity; T represents the deformation temperature; phip represents the deformation speed, and; a, b, c represent coefficients.
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公开(公告)号：AT343438T
公开(公告)日：2006-11-15
申请号：AT04731341
申请日：2004-05-06
Applicant: SMS DEMAG AG , ILSENBURGER GROBBLECH GMBH
Inventor： SCHMIDT DIRK , WEHAGE HARALD , WERNER FRANK , THUES GUENTHER
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公开(公告)号：AU2005205889A1
公开(公告)日：2005-08-04
申请号：AU2005205889
申请日：2005-01-14
Applicant: SMS DEMAG AG
Inventor： WEHAGE HARALD , LIXFELD PETER , BLEI HOLGER , GRIMM WOLFGANG , SKODA-DOPP ULRICH , BOROWIKOW ALEXANDER
Abstract: The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel of nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (R e ) into account when calculating the set rolling force (F w ) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (k f,R ) and the set rolling force (F w ) at small degrees of deformation (f) or small reductions, during which the high temperature limit of elasticity (R e ) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (k f ) for determining the set rolling force (F w ) via the relation (2) R e =a+e b1+b2.T .phip c , in which: R e represents the high temperature; phip represents the deformation speed, and; a, b, c represent coefficients.
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公开(公告)号：DE50105379D1
公开(公告)日：2005-03-24
申请号：DE50105379
申请日：2001-07-21
Applicant: SMS DEMAG AG
Inventor： WEHAGE HARALD , SKODA-DOPP ULRICH , BREUER MICHAEL , HAFER JOACHIM
Abstract: Continuously cast slabs production comprises using device having blooming train (4), roller table (3) for transporting rolled material, roller table section (5) with hoods, unit for leveling pre-strips, inductive device (7) for heating pre-strips to defined temperature, finishing train (10), delivery roller table with devices for cooling hot strip and coiling machines for coiling finished strip. One or more slabs made of carbon steel containing 0.2-0.8% carbon are rolled to pre-strips in the blooming train. The pre-strips are heated to a defined temperature using the combined action of the hood and the heating device, and then rolled. The rolling temperature lying in the upper austenite region in the first deformation stage in the blooming train leads to a conversion of a continuous cast structure to a rolled structure by complete recrystallization. An independent claim is also included for a device for carrying out the process.
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公开(公告)号：AT230315T
公开(公告)日：2003-01-15
申请号：AT99969051
申请日：1999-09-08
Applicant: SMS DEMAG AG
Inventor： FALKENRECK UDO , QUITMANN UWE , WEHAGE HARALD
Abstract: A method for producing hot-rolled strip and plates in a production plant having a continuous casting installation for slabs 100-180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without edging, a cooling interval, a heating furnace, and a Steckel mill. Between the continuous casting installation and the heating furnace, only the skin layer of the previously descaled slab is deformed in-line, recrystallized during and after deformation, and then cooled in several stages to a temperature below the Ar3 transformation point and temporarily maintained there until the microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.
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Patent Agency Ranking
公开(公告)号：DE10038292A1
公开(公告)日：2002-02-14
申请号：DE10038292
申请日：2000-08-05
Applicant: SMS DEMAG AG
Inventor： WEHAGE HARALD , SKODA-DOPP ULRICH , BREUER MICHAEL , HAFER JOACHIM
Abstract: Continuously cast slabs production comprises using device having blooming train (4), roller table (3) for transporting rolled material, roller table section (5) with hoods, unit for leveling pre-strips, inductive device (7) for heating pre-strips to defined temperature, finishing train (10), delivery roller table with devices for cooling hot strip and coiling machines for coiling finished strip. One or more slabs made of carbon steel containing 0.2-0.8% carbon are rolled to pre-strips in the blooming train. The pre-strips are heated to a defined temperature using the combined action of the hood and the heating device, and then rolled. The rolling temperature lying in the upper austenite region in the first deformation stage in the blooming train leads to a conversion of a continuous cast structure to a rolled structure by complete recrystallization. An independent claim is also included for a device for carrying out the process.
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公开(公告)号：CA2532719C
公开(公告)日：2010-10-19
申请号：CA2532719
申请日：2004-05-06
Applicant: SMS DEMAG AG
Inventor： SCHMIDT DIRK , WEHAGE HARALD , WERNER FRANK , THUES GUENTHER
Abstract: The invention concerns a method for cooling or quenching slabs and sheets (2) with water in a cooling pond (1, 14) wherein the slabs and the sheets (2), previously set upright by a tilting device (18), are lowered and temporarily maintained in position on edge. The inventive method is characterized in that the slabs and the sheets are sprayed with the cooling water. Therefor, the cooling pond (1) has, on both sides of the lowered slabs and sheets (2) jet devices (10; 11a, 11b) directed towards the surfaces of the large sides of the slabs or sheets and connected to a cooling water circuit which comprises means for reducing the water filling supply from a maximum upper water level (13b) to a lower water level (13a)
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公开(公告)号：AT376896T
公开(公告)日：2007-11-15
申请号：AT05700942
申请日：2005-01-14
Applicant: SMS DEMAG AG , ILSENBURGER GROBBLECH GMBH , GMT GES FUER METALLURG TECHNOL
Inventor： LIXFELD PETER , SKODA-DOPP ULRICH , WEHAGE HARALD , GRIMM WOLFGANG , BOROWIKOW ALEXANDER , BLEI HOLGER
Abstract: The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel of nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (R e ) into account when calculating the set rolling force (F w ) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (k f,R ) and the set rolling force (F w ) at small degrees of deformation (f) or small reductions, during which the high temperature limit of elasticity (R e ) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (k f ) for determining the set rolling force (F w ) via the relation (2) R e =a+e b1+b2.T .phip c , in which: R e represents the high temperature; phip represents the deformation speed, and; a, b, c represent coefficients.
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公开(公告)号：CA2344423C
公开(公告)日：2007-09-04
申请号：CA2344423
申请日：1999-09-08
Applicant: SMS DEMAG AG
Inventor： QUITMANN UWE , WEHAGE HARALD , FALKENRECK UDO
Abstract: A method for producing hot-rolled strip and plates in a production plant having a continuous casting installation for slabs 100-180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without edging, a cooling interval, a heating furnace, and a Steckel mill. Between the continuous casting installation and the heating furnace, only the skin layer of the previously descaled slab is deformed in-line, recrystallized during and after deformation, and then cooled in several stages to a temperature below the Ar3 transformation point and temporarily maintained there until the microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.
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公开(公告)号：DE102004023031A1
公开(公告)日：2004-12-02
申请号：DE102004023031
申请日：2004-05-06
Applicant: SMS DEMAG AG
Inventor： SCHMIDT DIRK , WEHAGE HARALD , WERNER FRANK , THUES GUENTER
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